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5. FINANCE LEASE RIGHT-OF-USE ASSETS (Tables)
 6 Months Ended
Jun. 30, 2019
Leases [Abstract]  
Property, plant and equipment under capital leases
    June 30,
2019		   December 31,
2018
At cost:                
Buildings   $ 119,701     $ 119,899  
Plant and machinery     2,189,762       2,193,375  
Total     2,309,463       2,313,274  
Less: Accumulated depreciation and amortization     (2,124,588)       (2,062,517 )
Net book value   $ 184,875     $ 250,757